Abstract
The replicas of the lower trunk and the thigh surfaces were taken by using a gypsum method on 7 female subjects (21 to 25 in ages) under 4 standardized lower limb positions : normal position, abduction 30° and flexion 30° at the hip joint, and flexion 90° at both the hip and the knee joints. Those replicas obtained were developed to the patterns and the changes in shape and area of those were measured. Typical displacement and transformation of the body surface patterns were showed geographycally in Fig. 4-a to c. Partial changes in surface areas were showed numerically in Table 1 and geometrically in Fig. 5-a to c. The characteristics of regional body surface changes were discussed as follows :
1. Constrictions of the lower trunk surface were observed in flexion side and extensions of it were in opposite side. So the surface changes in that region seemed to be influenced directly by the direction and the amount of lower limb movement.
2. The pieces which showed the maximum constriction or extension were existed in such thigh base region as inguen, trochanter and sulcus gluteus.
3. The changes of those pieces seemed to include not only an elastic change of skin itself but also opening and shutting of fold structure of it.
4. Changes in the thigh region were observed a little.
